Display panel or portion thereof with a transitional graphical user interface



FIG. 1 is a front view of a display panel or portion thereof with agraphical user interface showing a first image in a sequence of adesign;

FIG. 2 is a front view of a display panel or portion thereof with agraphical user interface showing a second image in the sequence of thedesign;

FIG. 3 is a front view of a display panel or portion thereof with agraphical user interface showing a third image in the sequence of thedesign;

FIG. 4 is a front view of a display panel or portion thereof with agraphical user interface showing a fourth image in the sequence of thedesign;

FIG. 5 is a front view of a display panel or portion thereof with agraphical user interface showing a fifth image in the sequence of thedesign;

FIG. 6 is a front view of a display panel or portion thereof with agraphical user interface showing a sixth image in the sequence of thedesign;

FIG. 7 is a front view of a display panel or portion thereof with agraphical user interface showing a seventh image in the sequence of thedesign;

FIG. 8 is a front view of a display panel or portion thereof with agraphical user interface showing an eighth image in the sequence of thedesign; and,

FIG. 9 is a front view of a display panel or portion thereof with agraphical user interface showing a ninth image in the sequence of thedesign.

The appearance of the display panel or portion thereof with graphicaluser interface sequentially transitions between the images shown inFIGS. 1-9. The process or period in which one image transitions intoanother forms no part of the claimed design.

The outermost broken-line rectangle illustrates the perimeter of adisplay panel or portion thereof. The remaining broken lines illustrateportions of a graphical user interface. The broken lines form no part ofthe claimed design.

CLAIM The ornamental design for a display panel or portion thereof witha transitional graphical user interface, as shown and described.